Thanks, that seems to do it.  For the sake of completeness, by the way, running from terminal by just "0ad" also seems to work, but not the Plasma launcher link, for some reason. So then, where to look for the executable file - is it the one I see in usr/bin, or another?  

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Good to know

Similar to the behavior(stances) of military units but focused on civilians. Repair. Gather. Build